If the frequency of a wave is doubled, what happens to its wavelength, assuming

Practice Questions

Q1
If the frequency of a wave is doubled, what happens to its wavelength, assuming the speed remains constant? (2021)
  1. Doubles
  2. Halves
  3. Remains the same
  4. Quadruples

Questions & Step-by-Step Solutions

If the frequency of a wave is doubled, what happens to its wavelength, assuming the speed remains constant? (2021)
  • Step 1: Understand the relationship between wavelength (λ), frequency (f), and speed (v) of a wave. The formula is λ = v / f.
  • Step 2: Recognize that if the speed (v) of the wave is constant, any change in frequency (f) will affect the wavelength (λ).
  • Step 3: If the frequency (f) is doubled, it means that the wave is oscillating more times in the same amount of time.
  • Step 4: Since wavelength (λ) is inversely proportional to frequency (f), if frequency increases, wavelength must decrease.
  • Step 5: Calculate the new wavelength: If f is doubled, then λ becomes half of its original value.
  • Wave Properties – Understanding the relationship between frequency, wavelength, and wave speed.
  • Inverse Proportionality – Recognizing that as one quantity increases, the other decreases when the product remains constant.
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